Greenleaf, KS 66943 Frost Dates
Greenleaf, KS: when does the frost end?
Around 04/24 is the usual last spring frost, about 239 days away. Fall's first freeze usually shows up around 10/14, roughly 171 days after the last spring frost.
Zone 6a (-10 to -5°F average annual minimum) comes from the USDA Plant Hardiness Zone Map; the frost dates above are the 1991-2020 normal at the nearest reporting NOAA station for Greenleaf, not a forecast for this year.
Stretching the season past the first frost
With roughly 7 weeks until Greenleaf's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
How much risk comes with planting early here
04/24 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/10 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/08 and only about 1 year in 10 sees frost after that.
Greenleaf against the rest of the dataset
Greenleaf's growing season runs about 171 days, ranking 28,806 of 40,283 US ZIP codes measured here, longest to shortest. Within KS, it ranks 658 of 745.
Learn more
Before leaning on 66943's figures: zone vs. frost date explains why Zone 6a and Greenleaf's frost date answer different questions, while the frost range explains how to read the range around Greenleaf's dates instead of trusting one.